Article
Materials Science, Coatings & Films
B. Bhushan, A. Banerjee, Subodh Nath Patel, Debdipta Banik, Kirtiratan Godbole, K. Vishwanath, Saikat Mandal, K. Mondal
Summary: This study investigates the passivation tendency and corrosion resistance of a novel Fe66.59C11.70P7.58Mn0.37Si2.86Cr1.72Mo0.92B8.26 amorphous coating prepared from pig-iron deposited on mild steel using a high-velocity oxy-fuel (HVOF) thermal spray process. The micro-morphological features of the coatings were quantitatively evaluated. Various tests were conducted to understand the corrosion behavior, including polarization response, current-transient, gravimetric evaluations, and spectroscopic examination of the corrosion product. The results showed that the coatings had strong passivation due to the protective iron-chromate and phosphate phases.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Engineering, Multidisciplinary
Lu ZhiChao, Peng XiangYang, Tang YuHai, Han ShuYin, Wu Yuan, Fu EnGang, Ding XiangBin, Hou Shuo, Lu GuangYao, Cao PeiPei, Zhang YiBo, Liu XiongJun, Ma Dong, Wang Hui, Jiang SuiHe, Lu ZhaoPing
Summary: This study investigated the use of Fe-based amorphous coatings to combat LBE corrosion and withstand irradiation damage. The amorphous coating effectively prevented LBE corrosion of the substrate steel at high temperature and exhibited strong irradiation resistance at ambient temperature.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2022)
Article
Materials Science, Characterization & Testing
Xiaofei Huang, Zenghua Liu, Yu Gong, Sha Wu, Kewei Chen, Cunfu He
Summary: This paper explores the principle of measuring the thickness of ferromagnetic coatings using pulsed eddy current (PEC) and extracts the typical and entropy features from the PEC signals. Seven integrated learning methods are combined to quantitatively characterize the coating thickness. The proposed XGBR machine learning model accurately predicts the coating thickness, with a relative error of less than 0.05 mm.
JOURNAL OF NONDESTRUCTIVE EVALUATION
(2023)
Article
Chemistry, Physical
Yong-kuan Zhou, Jia-jie Kang, Jie Zhang, Shuo Zhu, Zhi-qiang Fu, Li-na Zhu, Ding-shun She
Summary: In this study, AlxCoCrFeNi HEA coatings were prepared using HVOF technology and then subjected to plasma nitriding. The results showed that nitriding treatment can improve the microhardness and wear resistance of the coatings, with the nitrided AlCoCrFeNi HEA coating exhibiting the best wear resistance.
Article
Materials Science, Multidisciplinary
Chun-Ying Lee, Tzu-Jing Lin, Hung-Hua Sheu, Hung-Bin Lee
Summary: This study analyzed the corrosion-wear behavior of a Fe-based amorphous alloy coating in sea water. Experimental results showed that under low polarization potential, a passivation protective layer of chromium trioxide is formed, while at high polarization potential, a more effective corrosion resistance layer is formed by molybdate.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Coatings & Films
Changgui Pan, Rui Zhang, De Wang, Yulong Li, Tomiko Yamaguchi, Xiaofei Fan, Dechao Zhao, Wenqin Wang
Summary: The study found that high performance Fe-based amorphous coatings fabricated by resistance seam welding exhibit different microstructures, hardness, and corrosion resistance under different welding currents. It was observed that as the welding current increased, the amorphous rate in the coating decreased, resulting in a decrease in performance.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Coatings & Films
Dandan Liang, Yinghao Zhou, Xiaodi Liu, Qiong Zhou, Biao Huang, Ergeng Zhang, Qiang Chen, Jun Shen
Summary: This study investigates the influence of spraying potential on the phase composition, microstructure, hardness, wettability, and corrosion performance of amorphous coatings (ACs) deposited by arc-spraying technique. The results show that ACs with denser microstructure, higher microhardness, lower surface free energy exhibit better corrosion resistance. The corrosion resistance of the coatings is closely related to the surface hydrophobicity, which is mainly governed by the microstructure of the coatings.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Shuai Cui, Haimin Zhai, Wensheng Li, Xiangjuan Fan, Xuqiang Li, Weichao Ning, Dangsheng Xiong
Summary: Fe-based amorphous coatings were successfully prepared on Q235 steel by detonation spray, and the wear mechanism and performance of the coatings were significantly influenced by the oxygen-fuel ratio. Coating B exhibited good wear resistance and the wear mechanism changed with sliding speed.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Materials Science, Coatings & Films
Ashok Meghwal, Christiane Schulz, Colin Hall, Evelina Vogli, Christopher C. Berndt, Andrew Siao Ming Ang
Summary: This research explores fully amorphous and amorphous/crystalline (A/C) Fe-based coatings for high-temperature tribological applications. The fully amorphous coating shows higher wear resistance and thermal stability at 600 degrees C compared to room temperature (RT), performing better than A/C coatings at both temperature conditions. The worn surfaces of the fully amorphous coatings are dominated by abrasive and oxidative wear at RT, while abrasive, surface fatigue wear, and minor oxidation occur at 600 degrees C. The thick oxide glaze layer formed on the worn surface of fully amorphous coatings enhances their high-temperature mechanical properties and prevents severe wear loss.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Chemistry, Physical
Chenhao Huang, Jun Wang, Jing Yan, Li Liao
Summary: In order to enhance the performance of 304 stainless steel in oil and gas field applications, Fe-based coatings containing small amounts of amorphous structures were prepared and compared with corrosion resistant Hastelloy C276 coatings. The coatings were subjected to H2S corrosion tests and analyzed for microstructure and phase composition. The Fe-based coating showed better hardness, Young's modulus, and wear resistance, making it more effective in protecting the stainless steel in oil and gas applications.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Materials Science, Multidisciplinary
Jianxing Yu, Xin Liu, Yang Yu, Haoda Li, Pengfei Liu, Ruoke Sun, Limin Wang, Pengfei Li
Summary: The study analyzed the behavior of flame flow and Fe-based amorphous alloy particles during high-velocity oxygen fuel (HVOF) spray process, determining that the optimal particle size is between 20 and 30 µm, shape factor ranges from 0.9 to 1, optimal O/F ratio is 3.4, injection angle of 45 degrees, and injection rate of 10 m/s.
Article
Materials Science, Coatings & Films
Haoran Ma, Deren Li, Jiawei Li
Summary: In this study, Fe-based amorphous coatings were produced by HVOF spraying with varying spraying powers. It was found that the increase in spraying power led to a decrease in oxide content, more uniform distribution, and lower porosity in the coatings. This improved microstructure resulted in enhanced corrosion and wear resistance.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Jun-jie Xu, Jia-jie Kang, Wen Yue, Zhi-qiang Fu, Li-na Zhu, Ding-shun She
Summary: Two kinds of Fe-based amorphous alloy coatings were prepared by CS and HVOF techniques, showing different wear mechanisms at high temperatures. CS coatings had higher hardness and lower wear rate at room temperature, but exhibited higher wear rate at 673 K.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Engineering, Mechanical
Lintao Wu, Zehua Zhou, Kaicheng Zhang, Guangyu Wang, Xiangru Shi, Xin Zhang
Summary: An in-situ TiNX-reinforced Fe-based amorphous composite coating was successfully fabricated using reactive plasma-spraying, showing excellent bonding interface between well formed TiNX and the amorphous matrix. The composite coating exhibited higher microhardness and better resistance to plastic deformation compared to unadulterated amorphous coatings. Furthermore, it effectively improved the fracture morphology, delamination, oxidation, and other negative wear phenomena of the amorphous coating, especially under high load and high-speed friction conditions. The integration of TiNX played a significant positive role in enhancing the wear resistance of Fe-based amorphous coatings by improving friction-induced crack damage.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Materials Science, Coatings & Films
Jianxing Yu, Xin Liu, Yang Yu, Zhenmian Li, Shengbo Xu, Haoda Li, Pengfei Liu, Limin Wang
Summary: This study investigates the process and influencing factors of preparing Fe48Cr14Mo15C15B6Y2 amorphous alloy coatings by HVOF spraying. By analyzing the effect of process parameters on particle behavior, guidelines for obtaining high-quality amorphous coatings are proposed. The results show that spraying parameters significantly impact the coating quality.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2022)
